robert_gsfame Posted December 11, 2009 Share Posted December 11, 2009 i am still learning javascript as i am new to this..i try this code but no effect, hope that anyone could help. THX a lot <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <script type="text/javascript"> function button() { var x=document.getElementById("text1") if(x =="0"){alert("you have to fill!");}else{ alert("Yeah, you got it!!");} } </script> </head> <body> <form name="form1" method="post"> <input type="text" name="text" id="text1" /> <input type="button" onclick="button()"/> </form> </body> </html> This code didn't run well as when i left the textbox empty and still alert("Yeah, You got it!") Link to comment https://forums.phpfreaks.com/topic/184749-simple-if-question/ Share on other sites More sharing options...
kopytko Posted December 11, 2009 Share Posted December 11, 2009 Try this: function button() { var x = document.getElementById("text1").value.length; if(x == 0) { alert("you have to fill!"); } else{ alert("Yeah, you got it!!"); } } Link to comment https://forums.phpfreaks.com/topic/184749-simple-if-question/#findComment-975329 Share on other sites More sharing options...
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